patch 8.0.0657: cannot get and set quickfix list items

Problem:    Cannot get and set quickfix list items.
Solution:   Add the "items" argument to getqflist() and setqflist(). (Yegappan
            Lakshmanan)

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    657,
 /**/
     656,
 /**/